	/** 建立請求物件 */
	function createRequest() {
		try {
			// for non-IE
			request = new XMLHttpRequest();
		} catch (tryMS) {
			try {
				// for IE6 after
				request = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (otherMS) {
				try {
					// for IE5 before
					request = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (failed) {
					request = null;
				}
			}
		}
		return request;
	}
